What are the benefits of single stage
furnaces when variable speed is added?
A single stage furnace is sized to heat your home on the
coldest days of the year.
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It delivers 100% of its heating
capacity at all times of operation.
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Variable speed technology
under normal operating conditions ensures constant comfort
for the homeowner because the motor will automatically maintain
its programmed level of airflow.
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This constant airflow capability
provides a number of important benefits.
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The ECM system
can compensate for poor duct design. Systems with inadequate
duct volume can now deliver factory calibrated airflow.
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Better indoor-air quality can be achieved quietly and inexpensively
with the ECM motor because it can be set to run continuously
at reduced airflow levels, between heating or cooling cycles.
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Better air filtration without sacrificing efficiency. In fact, if you run
your thermostat in continuous fan mode, your electricity
consumption will be reduced from 500 watts to 65 watts over
a furnace that has a standard blower.
